Home / 669,842.60-1,005,930.30-354,914.60

Finding the Fourth Proportional to 669,842.60, 1,005,930.30 and 354,914.60

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Solution

The fourth proportional to 669,842.60, 1,005,930.30 and 354,914.60 is: 532,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,842.60 : 1,005,930.30 = 354,914.60 : x
  2. Step 2: Convert to fraction form
    669,842.60/1,005,930.30 = 354,914.60/x
  3. Step 3: Cross multiply
    669,842.60x = 1,005,930.30 × 354,914.60
  4. Step 4: Simplify right side
    669,842.60x = 357,019,350,052.38
  5. Step 5: Solve for x
    x = 357,019,350,052.38/669,842.60
  6. Step 6: Final answer
    x = 532,989.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.